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Panasonic CS-E9EKK, Service Manual

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Panasonic CS-E9EKK Service Manual Download Page 31

31

12 Troubleshooting Guide

12.1. Refrigeration Cycle System

In order to diagnose malfunctions, make sure that there are no
electrical problems before inspecting the refrigeration cycle.
Such problems include insufficient insulation, problem with the
power source, malfunction of a compressor and a fan.
The normal outlet air temperature and pressure of the
refrigeration cycle depends on various conditions, the standard
values for them are shown in the table on the right.

Summary of Contents for CS-E9EKK

Page 1: ...ted Circuit Board 15 8 1 Indoor Unit Main Printed Circuit Board 15 8 2 Outdoor Unit Main Printed Circuit Board 16 8 3 Indicator panel 17 9 Installation Instruction 18 9 1 Indoor Unit 19 9 2 Outdoor Unit 21 10 Operation and Control 24 10 1 Basic Function 24 10 2 Protection Control 27 11 Servicing Mode 30 11 1 Auto Switch Operation 30 11 2 Indicator Panel 30 12 Troubleshooting Guide 31 12 1 Refriger...

Page 2: ... and servicing Otherwise it will cause the set to fall water leakage fire or electrical shock 4 Install at a strong and firm location which is able to withstand the set s weight If the strength is not enough or installation is not properly done the set will drop and cause injury 5 For electrical work follow the local national wiring standard regulation and the installation instruction An independe...

Page 3: ...tenance 2 Power supply connection to the conditioner Connect the power supply cord of the air conditioner to the mains using one of the following methods Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency In some countries permanent connection of this room air conditioner to the power supply is prohibited 1 Power supply connection ...

Page 4: ... min cfm Cooling 9 9 350 Heating 10 8 380 Noise Level dB A Cooling High 40 Low 28 Heating High 42 Low 29 Cooling 45 47 Heating 46 48 Power level dB Cooling High 51 51 Heating High 53 53 Cooling High 58 60 Heating High 59 61 Electrical Data Input W Cooling 650 250 800 Heating 1 000 250 1 300 Running Current A Cooling 3 5 3 0 Heating 5 3 4 6 EER W W BTU hW Cooling 4 0 13 69 COP W W BTU hW Heating 3 ...

Page 5: ...Rated Output W 30 29 Fan Speed Lo Cool Heat rpm 880 930 Me Cool Heat rpm 1 100 1 200 Hi Cool Heat rpm 1 320 1 460 740 820 680 770 SHi Cool Heat rpm 1 360 1 490 Heat Exchanger Description Evaporator Condenser Tube material Copper Copper Fin material Aluminium Pre Coat Aluminium Fin Type Slit Fin Corrugated Fin Row Stage Plate fin configuration forced draft 2 15 2 24 FPI 21 17 Size W H L mm 25 4 315...

Page 6: ...ting High 44 Low 35 Cooling 45 47 Heating 47 49 Power level dB Cooling High 54 54 Heating High 55 55 Cooling High 58 60 Heating High 60 62 Electrical Data Input W Cooling 1 000 250 1 150 Heating 1 450 250 1 900 Running Current A Cooling 5 2 4 6 Heating 7 3 6 5 EER W W BTU hW Cooling 3 35 11 50 COP W W BTU hW Heating 3 24 11 03 Starting Current A 7 3 Piping Connection Port Flare piping inch inch G ...

Page 7: ... 1 360 Hi Cool Heat rpm 1 450 1 560 740 820 690 780 SHi Cool Heat rpm 1 490 1 590 Heat Exchanger Description Evaporator Condenser Tube material Copper Copper Fin material Aluminium Pre Coat Aluminium Fin Type Slit Fin Corrugated Fin Row Stage Plate fin configuration forced draft 2 15 2 24 FPI 21 17 Size W H L mm 25 4 315 610 36 4 504 718 4 689 8 Refrigerent Control Device Capillary Tube Refrigerat...

Page 8: ...8 3 Location of Controls and Components 3 1 Product Overview 3 1 1 Indoor Unit 3 1 2 Outdoor Unit 3 1 3 Remote Control ...

Page 9: ...9 4 Dimensions 4 1 Indoor Unit ...

Page 10: ...10 4 2 Outdoor Unit ...

Page 11: ...11 5 Refrigeration Cycle Diagram ...

Page 12: ...12 6 Block Diagram ...

Page 13: ...13 7 Wiring Connection Diagram ...

Page 14: ...14 ...

Page 15: ...15 8 Printed Circuit Board 8 1 Indoor Unit Main Printed Circuit Board ...

Page 16: ...16 8 2 Outdoor Unit Main Printed Circuit Board ...

Page 17: ...17 8 3 Indicator panel ...

Page 18: ... OUTDOOR UNIT If an awning is built over the unit to prevent direct sunlight or rain be careful that heat radiation from the condenser is not obstructed There should not be any animal or plant which could be affected by hot air discharged Keep the spaces indicated by arrows from wall ceiling fence or other obstacles Do not place any obstacles which may cause a short circuit of the discharged air I...

Page 19: ... level gauge 2 Drill the piping plate hole with ø70 mm hole core drill Line according to the arrows marked on the lower left and right side of the installation plate The meeting point of the extended line is the centre of the hole Another method is by putting measuring tape at position as shown in the diagram above The hole centre is obtained by measuring the distance namely 150 mm and 125 mm for ...

Page 20: ...20 This can be used for left rear piping and left bottom piping also ...

Page 21: ...han the other lead wires as shown in the figure for the electrical safety in case the cord slips out from the anchorage Secure the wire onto the control board with the holder clamper 4 After completing wiring connections reattach the metal cover to the original location 9 2 Outdoor Unit 9 2 1 INSTALL THE OUTDOOR UNIT After selecting the best location start installation according to Indoor Outdoor ...

Page 22: ...e nut located at valve onto the copper pipe Align center of piping to valves and then tighten with torque wrench to the specified torque as stated in the table Cutting and Flaring the Piping 1 Please cut using pipe cutter and then remove the burrs 2 Remove the burrs by using reamer If burrs is not removed gas leakage may be caused Turn the piping end down to avoid the metal powder entering the pip...

Page 23: ...ps onto the 2 way valve and the 3 way valve Be sure to check for gas leakage 9 2 4 OUTDOOR UNIT ELECTRICAL WIRING 1 Remove Top panel 2 Remove Control Board Cover Metal and Resin 3 Remove Plugs 4 Fix the conduit connectors to the conduit holes with lock nuts then secure them against the side panel 5 Connecting wire between indoor unit and outdoor unit should be UL listed or CSA approved 4 x AWG16 w...

Page 24: ...are two types of airflow vertical airflow directed by horizontal vane and horizontal airflow directed by vertical vanes 2 Control of airflow direction can be automatic angles of direction is determined by operation mode heat exchanger tempera ture and intake air temperature and manual angles of direction can be adjusted using remote control 10 1 2 1 Vertical Airflow 1 Automatic vertical airflow di...

Page 25: ...ation compare to normal operation B Control condition a Quiet operation start condition When quiet button at remote control is pressed Quiet LED illuminates b Quiet operation stop condition 1 When one of the following conditions is satisfied quiet operation stops a Powerful button is pressed b Stop by OFF ON switch c Timer off activates d Quiet button is pressed again 2 When quiet operation is sto...

Page 26: ...d b Stop by OFF ON switch c Timer off activates d Quiet button is pressed again 2 When quiet operation is stopped operation is shifted to normal operation with previous setting 3 When fan speed is changed quiet operation is shifted to quiet operation of the new fan speed 4 When operation mode is changed quiet operation is shifted to quiet operation of the new mod 5 During quiet operation if timer ...

Page 27: ...t time 10 2 Protection Control 10 2 1 Time Delay Safety Control Compressor will not start for three minutes after stop of the operation 10 2 2 30 Seconds Forced Operation Once compressor starts the operation it will not stop its operation for 30 seconds However it can be stopped with the remotecontroller or the Auto button on the indoor unit 10 2 3 Total Running Current Control 1 When the outdoor ...

Page 28: ...ol start conditions Control will perform when 1 3 condition continues operation for 5 minute and 4 is fulfill 1 During cooling and dry operation Frequency more than normal Fcmax During heating operation Frequency more than normal Fh 2 Outdoor total current I cooling Ib I Ia Heating Ib I Ic Ic Ia 1 65 A Ib 0 65 A 3 It is not during deice operation 4 During cooling and dry operation indoor suction i...

Page 29: ... When temperature of indoor heat exchanger exceeds 7 C operating frequency will be increased But up to programmed frequency 3 When temperature of indoor heat exchanger is below 0 C continuously for 6 minutes compressor will be stopped 4 Timer LED is not blinking F99 is memorized then Limit of Indoor fan speed When temperature of indoor heat exchanger is below 6 C 2 C at Soft Dry continuously for 6...

Page 30: ... sec after a press Auto Switch for more than 5 sec A beep beep sound will occur at the fifth sec then release the Auto Switch c Within 20 sec after b press Auto Switch again Everytime Auto Switch is pressed within 20 sec interval remote controller receiving sound status will be reversed between ON and OFF Long beep sound indicates that remote controller receiving sound is OFF Short beep sound indi...

Page 31: ... problems before inspecting the refrigeration cycle Such problems include insufficient insulation problem with the power source malfunction of a compressor and a fan The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions the standard values for them are shown in the table on the right ...

Page 32: ...es after an operation is started Cooling Mode Heating Mode Low Pressure High Pressure Electric current during operating Low Pressure High Pressure Electric current during operating Condition of the air conditioner Insufficient refrigerant gas leakage Clogged capillary tube or Strainer Short circuit in the indoor unit Heat radiation deficiency of the outdoor unit Inefficient compression ...

Page 33: ...the main unit is pressed To display memorized error Protective operation 1 Turn power on 2 Press the CHECK button on the remote controller contiuously for 5 seconds 3 will be displayed on the remote controller display Note Display only for No transmitting signal no receiving sound and no Power LED blinking 4 Press the TEMP or button on the remote controller Thecode H00 no abnormality will be displ...

Page 34: ...y Continue for 5 sec O Cooling only Heat exchanger temperature sensor defective or disconnected H27 Outdoor air temperature sensor abnormality Continue for 5 sec O Outdoor temperature sensor defective or disconnected H28 Outdoor heat exchanger temperature sensor abnormality Continue for 5 sec O Outdoor heat exchanger temperature sensor defective or disconnected H33 Indoor Outdoor wrong connection ...

Page 35: ...wards you gently Fig 1 Remove the earth wire Fig 2 Remove the control board cover complete screw Fig 2 Remove the control board complete Fig 2 Fig 1 Fig 2 13 1 2 To remove the Main Electronic Controller Remove the control board cover Fig 3 Remove the screw holding the indicator Fig 3 Press the fastener to the right and take out the particular piece Pull out the main electronic controller half way ...

Page 36: ...charge grille Fig 6 Then pull the discharge grille downward gently to dismantle it Fig 6 Remove 3 screws holding the control board Press down the control board fastener and the whole control board can be removed Fig 6 Fig 6 13 1 4 To remove the Cross Flow Fan and Indoor Fan Motor Remove the bearing by pulling it out gently Fig 7 Push the hook to the left and lift up the evaporator Then remove cros...

Page 37: ...37 14 Technical Data 14 1 Thermostat Characteristics ...

Page 38: ...38 14 2 Operation Characteristics Cooling Characteristic at Different Outdoor Air Temperature ...

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Page 46: ...5 Exploded View and Replacement Parts List 15 1 Indoor Unit Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Page 47: ... FULCRUM 1 CWH621046 17 LEADWIRE AIR SWING MOTOR 1 CWA67C3977 18 CAP DRAIN TRAY 1 CWH521096 19 HORIZONTAL VANE 1 CWE24C1155 20 BACK COVER CHASSIS 1 CWD932454 21 CONTROL BOARD CASING 1 CWH102259B 22 TERMINAL BOARD COMPLETE 1 CWA28C2082J O 23 ELECTRONIC CONTROLLER MAIN 1 CWA73C1876 CWA73C1877 O 24 INDICATOR COMPLETE 1 CWE39C1142 25 INDICATOR HOLDER 1 CWD932429 26 INDICATOR HOLDER 1 CWD932430 27 SENS...

Page 48: ...48 15 2 Outdoor Unit Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts ...

Page 49: ...001058 O 18 2 WAYS VALVE LIQUID 1 CWB021301 O 19 DRYER 1 CWB101017J 20 V COIL COMPLETE 1 CWA43C2233 O 21 SOUND PROOF BOARD 1 CWH151025B 22 REACTOR 1 CWA421050 G0A193M00001 O 23 SENSOR COMPLETE 1 CWA50C2340 O 24 CONTROL BOARD 1 CWH102273A 25 TERMINAL BOARD ASS Y 1 CWA28K1154 O 26 FUSE HOLDERS 1 K3GB1PH00016 27 FUSE 1 K5D203BK0001 28 CONTROL BOARD 1 CWH102114A 29 CONTROL BOARD 1 30 ELECTRONIC CONTRO...

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